Idle mode handling in a hybrid GSM/CDMA network

In a mobile wireless telecommunications system, which includes base stations of a first type operating over a first air interface, and base stations of a second type operating over a second air interface, a method for reselection by a mobile station camped on a cell associated with a first base station, which is of the first type, of a second base station, which is of the second type. The method includes receiving signals over the second air interface from the second base station and evaluating a characteristic of the signals. Responsive to the characteristic, the second base station is selected in place of the first base station, and the mobile station camps on a cell associated with the second base station.